package freejim.icu.highschoolhealthstatuspost.util;

import org.apache.http.HttpVersion;
import org.apache.http.client.HttpClient;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.PlainSocketFactory;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.conn.ssl.X509HostnameVerifier;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpParams;
import org.apache.http.params.HttpProtocolParams;
import org.apache.http.protocol.HTTP;

import javax.net.ssl.*;
import java.io.IOException;
import java.net.Socket;
import java.net.UnknownHostException;
import java.security.*;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

public class GetHttpClient {
	public static HttpClient getHttpClient(){  
        return getCertificateValidationIgnoredHttpClient();  
    }  
      
    private static HttpClient getCertificateValidationIgnoredHttpClient() {    
        try {    
            KeyStore trustStore = KeyStore.getInstance(KeyStore    
                    .getDefaultType());    
            trustStore.load(null, null);    
            //核心代码，创建一个UnVerifySocketFactory对象，验证证书时总是返回true  
            SSLSocketFactory sf = new UnVerifySocketFactory(trustStore);  
              
            HttpParams params = new BasicHttpParams();    
            HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);    
            HttpProtocolParams.setContentCharset(params, HTTP.UTF_8);    
            SchemeRegistry registry = new SchemeRegistry();    
            registry.register(new Scheme("http", PlainSocketFactory    
                    .getSocketFactory(), 80));    
            registry.register(new Scheme("https", sf, 443));    
            ClientConnectionManager ccm = new ThreadSafeClientConnManager(    
                    params, registry);    
            return new DefaultHttpClient(ccm, params);    
        } catch (Exception e) {    
            
            e.printStackTrace();  
            return new DefaultHttpClient();    
        }    
    }    
      
    /** 
     * 核心类 
     * UnVerifySocketFactory:一个验证证书时总是返回true的SSLSocketFactory的子类 
     */  
    private static X509HostnameVerifier ignoreVerifier;  
    private static class UnVerifySocketFactory extends SSLSocketFactory {  
        SSLContext sslContext = SSLContext.getInstance("TLS");  
  
        public UnVerifySocketFactory(KeyStore truststore)  
                throws NoSuchAlgorithmException, KeyManagementException,  
                KeyStoreException, UnrecoverableKeyException {  
            super(truststore);  
  
            TrustManager tm = new X509TrustManager() {  
                public void checkClientTrusted(X509Certificate[] chain,  
                        String authType) throws CertificateException {  
                }  
  
                public void checkServerTrusted(X509Certificate[] chain,  
                        String authType) throws CertificateException {  
                }  
  
                public X509Certificate[] getAcceptedIssuers() {  
                    return null;  
                }  
            };  
  
            sslContext.init(null, new TrustManager[] { tm }, null);  
        }  
  
        @Override  
        public Socket createSocket(Socket socket, String host, int port,  
                boolean autoClose) throws IOException, UnknownHostException {  
            return sslContext.getSocketFactory().createSocket(socket, host,  
                    port, autoClose);  
        }  
  
        //核心代码  
        @Override  
        public void setHostnameVerifier(X509HostnameVerifier hostnameVerifier) {  
            // TODO Auto-generated method stub  
            ignoreVerifier = new X509HostnameVerifier() {  
                @Override  
                public void verify(String arg0, String[] arg1, String[] arg2)  
                        throws SSLException {  
                }  
                @Override  
                public void verify(String arg0, X509Certificate arg1)  
                        throws SSLException {  
                }  
                @Override  
                public void verify(String arg0, SSLSocket arg1)  
                        throws IOException {  
                }  
                  
                //最最核心代码  
                @Override  
                public boolean verify(String arg0, SSLSession arg1) {  
                    return true;  
                }  
            };  
            super.setHostnameVerifier(ignoreVerifier);  
        }  
  
        @Override  
        public X509HostnameVerifier getHostnameVerifier() {  
            return ignoreVerifier;  
        }  
  
        @Override  
        public Socket createSocket() throws IOException {  
            return sslContext.getSocketFactory().createSocket();  
        }  
    }  
}
